Sheet-glass drawing and delivering mechanism



Aug. 28, 1923';

I. B. BUSARD SHEET GLASS DRAWING AND DELIVERING MECHANISM Filed Jan. 9, 1919 5 Sheets-Sheet 2 amowntoz I'll/ 26 Z. ,3 VSafCZ I. B. BUSARD SHEET GLASS DRAWING AND DELIVERING MECHANISM Aug. 28, 1923. 1,466.421

Filed Jan. 9, 1919 5- Sheets-Sheet 1 Ejuoewtoz acmm s Aug. 28 1923.

B. BUSARD SHEET GLASS DRAWING AND DELIVERING MECHANISM Filed Jan. 9, 1919 3 Sheets-Sheet 5 el 1 1 uemto'z In dz 5 .303470? Clttozucgg" Patented Aug. 28%, 1223.

INGLE B. BUSABD, OF CHARLESTON, WEST V IRGINIA ,.-ASSIGNOR TO THE LIBBEY- OWENS SHEET GLASS COMPANY, OF. CHARLESTON, WEST VIRGINIA, A CORPO- RATION.

SHEET-GLASS DBAWING'AND DELIVERING MECHANISM.

-App1ication filed January 9, 19191 Serial no. 270,323.

To all whom it may concern: 4

Be it known that I, INGLE B. BUSARD, a citizen of the United States of America, residin at Charleston. in the county oi Kanawlia and State of West Virginia, have invented certain new and useful Improvements in Sheet-Glass Drawing and Delivering Mechanism, of which the following is a specification, reference being had therein to the accompanying drawings.

The invention consists in the construction of a glass drawing and delivering mechanism in which a continuous sheet of glass is drawn in a vertical path, the end sectionsevered and delivered horizontally to a horizontal carrier which may deliver it into the leer, and further in the construction, at.- rangement and combination of the yarious parts, as "more fully hereinafter described and pointed outfinthe claims.

In the drawingsi' Fig. 1 is a vertical central section through a glass furnace, drawing mechanism and sheet-handling device, embodying my invention, parts being in section for clearnessand parts shown in dotted lines;

Fi 2 is a vertical transverse section, substantiall on the line 2-2 ofv Fig. 1, some parts being broken away.

Fig. 3 is a plan of the scoring frame, chain and its drive-Wheel, I

Fig. 4 is an enlarged plan of the cutter Fig. 5 is a vertical section through the horizontal roller carrier for the detached sheet, showing the frame in depositing position; and

Figs. 6 and 7 are elevations of the 'cams for operating the glass-handling frame and pusher.

In the drawings, 1 represents a glass tank of the continuous type, from which glass flows into a shallower tank, 2, which may be called the drawing tank. Below this is shown a suitable heating chamber, 3, and above it, on each side of the drawing point, are the top tiles, 4:, supported on watercooled supports,5. At each side of the drawing point are adjustable water coolers 6, and near the glass surface are pairs 0 width maintaining rollers, 7 these parts bein of the general construction set forth. in Cilburn Patent No. 1,248,809, datedDe' cember 4c, 1917.

Extending upward on each sideof the 1 drawing point, is a supporting frame, 8, which may be of any desired construction, and end frames, 9, which are preferably bricked up, as" shown.

Supported in the frame-work is sheet drawing mechanism; that as shown comprises two bottom shafts, 10, 10, and upper shafts, .11, 12, having thereon suitable sprocket wheels, 13, over which pass the sprocket chains, 14, which chains, of each pair, are preferably connected by grip bars 15, which are adapted to grip the thickene edges, 16, of the glass sheet between them, leaving the main body of the sheet free from contact therewith. I

The bearings for the shafts, 11, 12, are su ported on the links, 17, pivoted to the si e frame, and adjustable as to length by the turn-buckles 18; thus providing for tightening the chains. The bearings for the shafts 10 are supported by similar adjustable links, 19, and these hearings as well as those for the shafts 11, 12, are backed by springs 12* as shown in Fig. 1. This construction may be as shown for the bearing rolls, 20, which bear against the middle ti portion of the chain, and the bearings therefor in the end frames are backed by springs, 21, V the tension of which is adjustable by screws 22 (Fig. 1).

c The shafts 11, 12, are geared togetherby ear wheels, 24, and the shaft 12 is driven y a drive chain, 25, from the main drive shaft, 26. These drawing chains 14 are preferably ke not to un uly cool the glass.

At the top, there are two inclined roof lates, 28, which approach near each other,

caving a slot for the sheet of glass, 30, to pass t rough asit is'drawn. This may be closed against broken glass' by strips of asbestos, 31. Above the roof plates is a backing roller, 32, against which the cutter ma act; 33 being the cutter frame, as shown in igs. 2 and3 supported on the main frame andhaving a suit-able guide-way for the endless chain, 34, one link 35 of which is provided with a spring-pressed scoring device or cutter, 36,- Fig. 4, which will score the lass as it travels across.

T e frame 33 is inclined, as shown in Fig. 2 and supported at-opposite edges of the gillass by theadjusting screws, 38, to adjust 6. angle according to the speed of draw.

a suitable 4 heated, as by burners 27, so as The chain 34 asses around the sprocket wheel 39 on the shaft 40, and is driven intermittently by a Geneva movement shown at all, Fig. 1, and a gear connection, Q, the

Geneva movement being driven from shaft 26 by the chain 43.

" rolls,

rolls a distance eqn adapted to. sever the end portion alo scored line, lift it free from the end 0 the position.

'liy this mechanism the sheet will bescored as it is drawn, at stated intervals, with a substantially transverse score. Beyond the scorin device the sheet asses between the it, which are pre erably idlers, and one or both of which should be springbacked to permit the bait or any deformed glass to pass through without too great resistance;

. When the sheet beyond these zontally upon a horizontal carrier which, will take it to the leer or leer carrier, be cause it is desirable that the sheet be handled and annealed in a flat horizontal now to described "is the The mechanism oncoming sheet, turn it to the horizonwi, deposit it upon a horizontal carrier, and return for another sheet or end section Un themain drive shaft 26 are two cams, 50 and 51, operating the rack bars, 52, 53, (Fig. 2) respectively. The rack-bars mesh with the gear pinions, 54, 55, which are respectively on the shafts, 56, 57 the shaft 5 being hollow and arranged around the shaft 56. Attached to the shaft 56 is a counterweighted lever 59, and aframe, 60; and attached to the hollow shaft 57 is the pusher,

. or clamging-plate, 61, it being connected to the she by end arms, 62. It will be noticed that the shafts 56, 57, are arranged beside the drawing plane of the sheet.

The action of these parts with'the cams properly shaped is as follows: As soon as the scoring device has moved across the sheet, and the scored line has reached av point just above the rollers, 4a, the pusher 61 is moved to the left, Fig. 1, (by the cam and connected parts) until it clamps the sheet against the frame 60. The pusher and frame then move together, rocking about the'axis of the shaft 56. Their first rocking the endless drawing sses u we the istance between scores, it is intended that it be broken from the incoming sheet, and such severed end portion be carried away and delivered hori neeaaa rollers, it. slows down. 'Thebars of the frame can upon the rbllers, which immediatel move out of the plane of'the frame 60, which frameis now returned by its cam and rackbar to be ready for another operation.

Itwill be understood that the sheet is initiated by a bait (not shown) in the usual manner and, the spring-pressed rollers of clamp permit this to be passed through. fter the bait is broken 0%, the sheet will continue to be drawn,

,scored, and the end section detached and delivered to the horizontal.

It will be noticed that the shaft 56 isofiset from the drawing line far enough so that I the first movement of the sheet a ter being cracked off will be upward, to' separate the end of the severed section from the oncoming sheet, as it is moved laterally out of the plane thereof, This prevents scraping of the cut edges and consequent broken sheets. By havin a wide frame and a clamping device, as s own, broken sheets can be transferred to the horizontal carrier, if the sheet is not broken in too. small pieces. Broken sections which fall on the inclined to sections. 28 canbe cleaned out through suitable doors, 72, 73.

What I claim as new is:

lgln an apparatus for drawing sheet glass, means for drawing a sheet of glass vertically, a horizontal leer conveyor, means pass into the spaces between the roller sections of thecarrier as shown in Fig. 5, so that the sheet willbe deposited the sheet horizontally into the leer, 1, and

for scoring the continuously advancing sheet at spaced intervals, a clamping plate movable against one face of the sheet to break -ofi the section at the score, a supporting frame against which the severed sheet sec tion is clamped by the clamping plate, means for successively moving the c amping plate against the sheet, swinging the plate, sheet section and frame into a horizontal plane, and quickly returning the clamping plate'to its vertica maining in horizontal position until it has delivered the sheetsection to the leer conveyor, then returning to receive the next sheet section.

r 2,, A; device for carrying away successive severed end portions of a vertically moving drawn glass sheet, comprising two rocking frames, one a supportin frame and the other a clamping frame, an means for causing the clamping frame to return earlier than I away successive end portions of a score vertically moving, drawn'glass sheet, comprising two rocking frames,,'one a supportposition, the carrier frame reing frame and the other aclamping frame, means for rocking the frames synchronously to first have a slow movement to crack the loo nee -ear sheet, thereafter to increase their s, finally to slow up for depositing the sheet,

and then to return.

4. A device for carrying away successive severed end portions of a vertically moving drawn glass sheet, comprising a swinging clamp composed of a supporting frame and a clamping-frame, means for rocking them together to clamp the glass sheet and move it from the vertical to the horizontal, and means for returning the clamping member in advance of the supporting member.

5. A device for carrying away successive severed end portions of a vertically moving drawn sheet of glass, comprising a swinging clamp adapted to clamp the severed section and move it from the vertical to a horizontal position, a-horizontal carrier beside the frame, the clamp adapted to move below the plane of the carrier to lay the glass sheet thereon, and means for actuating the carrier to move the sheet out of the path of the clamp.

6. In a device for carrying away successive severed end portions of a vertically moving drawn sheet of glass, comprising a swinging clamp adapted to move the severed section from the vertical to the horizontal, a horizontal roller carrier besidethe frame, the carrier having spaces into which the frame of the clamp may pass to deliver the sheet upon the rollers, and means for actuating the rollers to move the sheet ed the clamp.

7. A drawing device for sheet glass, comprising a pair of parallelly arranged endless chains having their vertical runs arranged in proximity, clamping blocks on the chains adaplted to clamp against the opposite sides of t e sheet of glass, spring-pressed shafts carrying sprocket wheels over which the chains run, and intermediate spring-pressed rollers bearing against the intermediate portions of the inner runs of the chains.

8. In combination, means for drawing as it is being drawn comprisin an en less carrier, a scoring device carried thereby, and means for idin said endless carrier and scoring device obliquely across the face of the movln sheet.

9. In com ination, means for drawing sheet glass and means for severing the lass as it is being drawn comprisin an en less carrier, a scoring device carried thereby, means for intermittently driving said carrier, and means for guiding said endless carrier and scoring device obliquely upward across the'face of the moving sheet.

' 10. In combination, means for drawing sheet glass and means for scorin the sheet at right-angles to its length as it is being drawn comprising an endless carrier, ascoring device carried thereby, means for intermittentl drivin said carrier, and means for gui ing sai endless carrier obliquely across the face of the moving sheet, the inclination of said guiding means bein adjustable to conform to the ed at whic the sheet is dra. v

, lin testimony whereof I aili'x my signature.

INGLE B. BUSARD.

. sheet glass and means for severing the lass 

